From a0c590944ff82d3584a532cd7400689297735757 Mon Sep 17 00:00:00 2001
From: Castor Regex <regex@wit.com>
Date: Wed, 22 Oct 2025 05:31:24 -0500
Subject: feat: add support for .proto files

---
 packages/core/src/utils/fileUtils.ts | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'packages/core/src/utils/fileUtils.ts')

diff --git a/packages/core/src/utils/fileUtils.ts b/packages/core/src/utils/fileUtils.ts
index f0b491ed..009a4d72 100644
--- a/packages/core/src/utils/fileUtils.ts
+++ b/packages/core/src/utils/fileUtils.ts
@@ -121,7 +121,9 @@ export async function isBinaryFile(filePath: string): Promise<boolean> {
  */
 export async function detectFileType(
   filePath: string,
-): Promise<'text' | 'image' | 'pdf' | 'audio' | 'video' | 'binary' | 'svg'> {
+): Promise<
+  'text' | 'image' | 'pdf' | 'audio' | 'video' | 'binary' | 'svg' | 'proto'
+> {
   const ext = path.extname(filePath).toLowerCase();
 
   // The mimetype for various TypeScript extensions (ts, mts, cts, tsx) can be
@@ -135,6 +137,10 @@ export async function detectFileType(
     return 'svg';
   }
 
+  if (ext === '.proto') {
+    return 'proto';
+  }
+
   const lookedUpMimeType = mime.lookup(filePath); // Returns false if not found, or the mime type string
   if (lookedUpMimeType) {
     if (lookedUpMimeType.startsWith('image/')) {
@@ -280,6 +286,13 @@ export async function processSingleFileContent(
           returnDisplay: `Read SVG as text: ${relativePathForDisplay}`,
         };
       }
+      case 'proto': {
+        const content = await fileSystemService.readProtoFile(filePath);
+        return {
+          llmContent: content,
+          returnDisplay: `Read proto file: ${relativePathForDisplay}`,
+        };
+      }
       case 'text': {
         const content = await fileSystemService.readTextFile(filePath);
         const lines = content.split('\n');
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